EP0710790A1 - Electrovanne et son utilisation - Google Patents

Electrovanne et son utilisation Download PDF

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Publication number
EP0710790A1
EP0710790A1 EP95116925A EP95116925A EP0710790A1 EP 0710790 A1 EP0710790 A1 EP 0710790A1 EP 95116925 A EP95116925 A EP 95116925A EP 95116925 A EP95116925 A EP 95116925A EP 0710790 A1 EP0710790 A1 EP 0710790A1
Authority
EP
European Patent Office
Prior art keywords
solenoid valve
coil
sealing element
armature
armature piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95116925A
Other languages
German (de)
English (en)
Other versions
EP0710790B1 (fr
Inventor
Hans-Peter Oesterle
Heins Schäfer
Wolfgang Blaffert
Frank Zimmermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gustav Wahler GmbH and Co KG
Original Assignee
Binder Magnete GmbH
Gustav Wahler GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Binder Magnete GmbH, Gustav Wahler GmbH and Co KG filed Critical Binder Magnete GmbH
Publication of EP0710790A1 publication Critical patent/EP0710790A1/fr
Application granted granted Critical
Publication of EP0710790B1 publication Critical patent/EP0710790B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet

Definitions

  • the invention relates to a solenoid valve according to the features of the preamble of claim 1 and the use of such a solenoid valve.
  • the solenoid valve has a cylindrical housing in which an excitation coil is wound on a coil body and an armature piston which is axially displaceable along a central axis when the excitation coil is energized is arranged in an armature space of the coil body.
  • a sealing element arranged on the end face of the armature piston is printed or released into a valve seat of a valve part.
  • the sealing element which is arranged centrally to the center axis of the armature piston, is fixedly connected to the armature piston via a plunger and is therefore positively guided by the armature piston.
  • the sealing element is pressed onto the valve seat by the force of a compression spring. If current flows through the excitation coil, a force develops against the spring force, whereby the sealing element releases the valve seat.
  • the solenoid valve opens and a gaseous or liquid medium can flow through the solenoid valve.
  • Solenoid valves of this type are widely used, for example, in automotive technology for pneumatic pressure or vacuum control (for example exhaust gas recirculation, gear shift point, increase, etc.).
  • proportional solenoid valves are particularly important, in which the cross section of a bore to be closed can be narrowed depending on their magnetic excitation of the excitation coil.
  • Such proportional solenoid valves have the advantage that there is a linear relationship between the current intensity supplied to the excitation coil and the valve opening caused thereby.
  • the present invention has for its object to provide a simple to manufacture solenoid valve that securely closes a valve seat with a predetermined force in the idle state and opens reliably and quickly despite this predetermined compressive force in operation.
  • the invention is based on providing the solenoid valve with a device which presses the sealing element of the solenoid valve against the valve seat with a predetermined force in the starting position of the armature piston.
  • the device has a second coil which surrounds the armature piston and can be energized independently of the excitation coil and which, in the event of a predetermined change in current, cancels the force of the sealing element which presses against the valve seat.
  • the main advantage of such a system is a high compressive force in the stroke start position and a relatively low current supply to the proportional magnet for controlling the valve stroke.
  • the second coil which is used exclusively to neutralize the squeezing force in the initial stroke position, can be controlled separately, which requires three electrical leads. However, it can also be in series with the excitation coil, the current of the second coil being limited by a corresponding electrical component in the case of the tearing current, that is to say the current required for the full neutralization of the permanent magnet. Two electrical leads are required.
  • the solenoid valve is on the armature piston within the housing of the solenoid valve
  • Acting permanent magnet is provided, through which the sealing element is pressed against the valve seat when the excitation coil and the second coil are de-energized.
  • the permanent magnet is surrounded in a ring or coaxially by the second coil, whereby the effect of the permanent magnet when the second coil is energized can be neutralized with a predetermined current.
  • the permanent magnet can be arranged within the housing of the solenoid valve such that the armature piston is pressed out of the housing of the solenoid valve when the excitation coil is deenergized and the second coil is deenergized.
  • a solenoid valve is suitable for press-closing valve seats.
  • the permanent magnet can be, for example, a fixed ring magnet, through the opening of which the armature plunger facing the sealing element is axially movable. The ring magnet acts on the face of the armature piston facing the sealing element and attracts it.
  • the permanent magnet can also be arranged within the housing of the solenoid valve so that the valve seat is closed by a pulling force.
  • the permanent magnet is, for example, a disk-like or plate-shaped permanent magnet which is fixed within the housing of the solenoid valve and which is on the sealing element facing away from the anchor piston. The dimensioning of this permanent magnet is to be chosen so that the armature piston is attracted by the permanent magnet with a predetermined force.
  • the second coil is preferably arranged coaxially with the permanent magnet.
  • a magnetic field is built up which, provided that the current is adequate, enables the permanent magnet to be neutralized uniformly well.
  • the winding direction of this second coil or the polarity of the current flowing through this second coil is set in such a way that the neutralizing effect is also possible, that is to say the magnetic fields are opposite to one another.
  • a permanent magnet for providing the compressive force is a preferred solution of the magnetic valve according to the invention from a safety-relevant point of view, it is fundamentally possible to dispense with such a permanent magnet. If a current with a specific current flows through the second coil when the excitation coil is deenergized and thus in the starting position of the armature piston, the sealing element, which is connected to the armature piston via the armature tappet, is also pressed against the valve seat. The prerequisite for this is that the current flowing through the second coil generates a magnetic field which partially penetrates the armature piston and presses it in the desired direction with a predetermined force which depends on the current intensity of the second coil.
  • This compression spring in conjunction with the force characteristics of the magnet, results in the desired stroke positions, depending on the current level.
  • the spring preload in the initial stroke position can be approximately zero.
  • the spring preload is preferably designed such that it corresponds to the force of the proportional magnet when the tearing current is reached, that is to say when the permanent magnet is completely neutralized. This dimensioning prevents jumps in the armature piston and thus jerky movements of the armature plunger at the start of the stroke.
  • the second coil is preferably dimensioned such that the tearing current has approximately the size at which the magnetic force changes into the linear region at the start of the stroke.
  • a further development of the invention provides that the solenoid valve is seated on an outer wall of a T-shaped tube section which has a first tube channel and a second tube channel leading perpendicularly into this first tube channel.
  • the sealing element of the solenoid valve is seated on the valve seat arranged at the transition between the two pipe channels.
  • the solenoid valve is advantageously placed on a flange of the outer wall of the T-shaped pipe section. This pipe section can form a structural unit together with the attached solenoid valve then be sold as a complete valve that is used, for example, in automotive engineering.
  • the solenoid valve is provided with a membrane on its end face facing the sealing element. There is an intermediate space between the membrane and the opposite end cover part of the solenoid valve, which is connected via a bore which is located within the armature plunger and with an opening on the armature plunger tip.
  • the sealing element can be detachably arranged on the anchor plunger.
  • the solenoid valve according to the invention is preferably used as a proportional valve for internal combustion engines in automotive engineering for closing flow openings.
  • the solenoid valve can be used in particular for controlling the exhaust gas recirculation of internal combustion engines, in particular of motor vehicles, in automobiles.
  • the sealing element is seated on or within a pipe duct which carries the exhaust gas generated when the engine is running. This pipe duct opens into a fresh air duct via which the combustion chamber of the engine is supplied with the oxygen necessary for the combustion.
  • the solenoid valve controls the exhaust gas recirculation into the combustion chamber by opening and closing it and thereby contributes effectively Environmental protection at.
  • the exemplary embodiment of a solenoid valve shown in FIG. 1 has a cylindrical housing 1, which essentially consists of a tube piece which is closed on both sides by a cover part 12 and 13. Sealing rings 25, 26 are arranged between the respective cover parts 12, 13 and the tube piece.
  • an excitation coil 2 is wound on a coil body 3.
  • An armature piston 11 which is axially displaceable along a central axis X is arranged in the armature space 4 of the coil body 3.
  • the armature piston 11 is fixedly connected to an armature tappet 5.
  • the armature plunger 5 projects through a through opening 13a of the cover part 13 and is at its front end with a sealing element 6 for sealing a valve seat 7 connected.
  • the armature piston 11 shown in Figure 1 is in the initial stroke position, i.e. in this position of the armature piston 11, the excitation coil 2 is not flowed through by current. After energization of the two coils, the armature piston 11 moves in the direction of the upper cover part 12.
  • the upper cover part 12 which at the same time forms the pole core, is provided with a bore 27 in which the armature plunger 5 with one on the the sealing element 6 facing away from the end face 16 of the armature piston 11 projecting section.
  • valve seat 7 is part of a valve part 8 and, in the illustration of FIG. 1, is arranged within a T-shaped pipe section.
  • the valve part 8 has a first pipe duct 23 and a second pipe duct 24 leading vertically into this pipe duct 23.
  • the transition from the second pipe duct 24 to the first pipe duct 23 is widened in a cone shape.
  • the sealing element 6 rests in this conical widening, which forms the valve seat 7, in order to seal the second pipe channel 24.
  • the magnetic valve shown in FIG. 1 presses the sealing element 6 with a predetermined force against the valve seat 7.
  • the predetermined force can be several Newtons and is provided in the exemplary embodiment of FIG. 1 by an annular permanent magnet 10.
  • the permanent magnet 10 is arranged on the side of the armature piston 11 assigned to the lower end face 15.
  • the permanent magnet 10 is also coaxially surrounded by a second coil 9.
  • This second coil 9 can be controlled either separately or in series with the excitation coil 2. Expediently, however, the excitation coil 2 and the second coil 9 flow through the same current, which will be explained in more detail below.
  • the excitation coil 2 and the second coil 9 are arranged axially at a distance from one another.
  • the excitation coil 2 and the second coil 9 can be wound axially next to one another on a common coil former 3, as shown in FIG. 1.
  • the solenoid valve 1 also has a compression spring 17 which is supported on the one hand on the outer wall of the lower cover part 13 and on the other hand on a ring 29 which is firmly connected to the armature plunger 5.
  • This compression spring is mainly used for stroke control. In the case of spool control with two supply lines, the selected spring preload also prevents jumps.
  • a membrane 14 is clamped in such a way that an intermediate space 18 is formed between the cover part 13 and the membrane 14.
  • the compression spring 17 which is designed here as a spiral spring.
  • the anchor plunger 5 is in the area of this space 18 is provided with an opening 20, which is connected to an opening 21 on the end face of the armature plunger 5 via a through hole 19, which acts as a pressure compensation channel.
  • the membrane 14 is seated in a flange 22 of the valve part 8.
  • the tubular housing wall of the housing 1 is placed on this flange 22.
  • the armature piston 11 together with the armature tappet 5 and sealing element 6 is pressed onto the valve seat 7 with a predetermined force.
  • this compressive force is neutralized with increasing current intensity, provided that the winding direction of the second coil 9 is selected accordingly.
  • tear current is reached, the magnetic holding force of the permanent magnet 10 is just being neutralized. From now on, the stroke position is proportional to the energization of the excitation coil 2.
  • the solenoid valve shown in FIG. 1 can be used in particular for use as a proportional valve for closing passage openings and in particular as a proportional solenoid valve for controlling exhaust gas recirculation in internal combustion engines in motor vehicles.
  • the second pipe duct 24 shown in FIG. 1 corresponds in this case to an exhaust gas supply duct and the first pipe duct 23 to a fresh air duct.
  • the sealing element 6 can be screwed onto the anchor plunger 5, plugged on or fastened in some other detachable manner.
  • the armature tappet 5 itself can also be configured in two parts by the armature tappet part protruding from the housing 1 onto the armature tappet part arranged within the valve part 8 can be attached, screwed on or the like.
  • FIG. 2 shows a second exemplary embodiment of a solenoid valve according to the invention.
  • this is not a “pushing” valve in which the armature tappet 5 with its sealing element 6 located at the front end is pressed against the valve seat 7, but rather a “pulling” valve.
  • a “pulling” valve is understood here to mean that the armature tappet 5 with its sealing element located at the front end must be pulled in the direction of the solenoid valve housing 1 in order to close the valve seat 7.
  • the sealing element 6 sits completely in the second pipe channel 24, which narrows in the mouth area to the first pipe channel 23.
  • the sealing element 6 sits in the not yet narrowed part of the second pipe channel and has a larger outer diameter than the narrowed area of this second pipe channel 24.
  • the sealing element 6 is preferably arranged centrally in the second pipe channel 24.
  • the outer contour of the sealing element 6 and the second pipe channel 24 are matched to one another such that a good sealing effect is achieved when the sealing element 6 bears against the constriction of the second pipe channel 24.
  • the sealing element 6 is pressed against the valve seat 7 with a predetermined force.
  • the solenoid valve seated on the flange 22 with its housing 1 pulls the armature tappet 5 upwards with a predetermined force.
  • This predetermined force is provided by a permanent magnet, which is now designed as a plate or disk-shaped permanent magnet 10.
  • This permanent magnet 10 sits opposite the end face 16 of the armature piston facing away from the sealing element 6 11.
  • the second coil 9 is now located between the upper cover part 12 and the excitation coil 2.
  • the second coil 9 is in turn arranged coaxially around the permanent magnet 10 in order to neutralize its effect when current is supplied to the second coil 9 at the appropriate current strength can.
  • This compression spring 17 which is designed as a spiral spring, is now supported on the one hand on the outer wall of the valve part 8 and on the other hand on the ring 29 connected to the armature tappet 5.
  • the compression spring 17 is also in the space formed by the flange 22 of the valve part 8 and the membrane 14.
  • the intermediate space 18 lying between the lower cover part 13 and the membrane 14 is again connected to the second pipe duct 24 via a pressure compensation duct which is arranged inside the plunger 5.
  • the pressure compensation channel is formed by the through bore 19 and its opening 20 located in the intermediate space 18 and the opening 21 located at the tip of the armature plunger 5.
  • the armature piston 11 is now conically tapered on its end face 15 facing the sealing element 6. This is necessary because the lower cover part 13, which forms the pole core, has a hollow cylindrical, conically expanded wall, which extends somewhat into the through opening of the Coil body 3 extends into it. This hollow cylindrical wall of the lower cover part 13 forms the control cone 28 known per se.
  • the armature piston 11 is in the solenoid valve shown in Figure 2 in its initial stroke position, i.e. the excitation coil 2 and the second coil 9 have no current flowing through them.
  • the permanent magnet 10 pulls the armature piston 11 upwards with a predetermined force, as a result of which the sealing element 6 connected to the armature piston 11 via the armature tappet 5 is pressed against the valve seat 7.
  • a current flows through the second coil 9, which neutralizes the magnetic force of the permanent magnet 10.
  • the exemplary embodiments of solenoid valves shown in FIGS. 1 and 2 are also distinguished by a secure closing of the valve seat 7 in the event of a power failure. Because of the spring force and the magnetic force of the permanent magnet 10, the armature piston 11 is in each case moved so that the sealing element 6 presses against the valve seat 7.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP95116925A 1994-11-05 1995-10-27 Electrovanne et son utilisation Expired - Lifetime EP0710790B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4439695 1994-11-05
DE4439695A DE4439695C2 (de) 1994-11-05 1994-11-05 Magnetventil und dessen Verwendung

Publications (2)

Publication Number Publication Date
EP0710790A1 true EP0710790A1 (fr) 1996-05-08
EP0710790B1 EP0710790B1 (fr) 2002-05-08

Family

ID=6532664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116925A Expired - Lifetime EP0710790B1 (fr) 1994-11-05 1995-10-27 Electrovanne et son utilisation

Country Status (3)

Country Link
EP (1) EP0710790B1 (fr)
AT (1) ATE217399T1 (fr)
DE (2) DE4439695C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810398A2 (fr) * 1996-05-30 1997-12-03 Nass Magnet GmbH Robinets-vannes électriques
FR2797022A1 (fr) * 1999-07-30 2001-02-02 Sagem Electrovanne et dispositif de commande en comportant application

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636781C2 (de) * 1996-09-11 2000-02-10 Festo Ag & Co Magnetventil
DE19859387A1 (de) * 1998-12-22 2000-07-06 Kendrion Binder Magnete Gmbh Hubmagnet mit Haltefunktion
DE10221134A1 (de) 2002-05-13 2003-11-27 Uwe Bernheiden Elektromagnetischer Aktuator
DE102004056236B4 (de) * 2004-11-22 2011-06-16 Kendrion Magnettechnik Gmbh Bistabiler Umkehrhubmagnet
DE102008063689C5 (de) 2008-12-19 2013-02-28 Kendrion (Donaueschingen/Engelswies) GmbH Elektromagnet mit Permanentmagnet
DE102010014140B4 (de) * 2010-04-07 2013-09-19 Schlaeger Kunststofftechnik Gmbh Elektromagnetische Stellvorrichtung
JP2014065387A (ja) * 2012-09-25 2014-04-17 Showa Corp 自動二輪車の車高調整装置
DE102015203486A1 (de) 2015-02-26 2016-09-01 Minimax Gmbh & Co. Kg Ventil zum Schalten von Fluiden, Löschanlage und Verfahren
DE102018001243A1 (de) 2018-02-16 2019-08-22 Kendrion (Donaueschingen/Engelswies) GmbH Bistabiler elektromagnetischer Hubaktor sowie Drahtziehmaschine

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH37507A (de) * 1906-09-21 1907-06-15 E C H Syndicate Limited Elektromagnetisches Ventil
DE1004876B (de) * 1953-05-19 1957-03-21 Baelz & Sohn K G W Elektromagnetisch gesteuerte Absperreinrichtung
CH352209A (de) * 1956-09-29 1961-02-15 Siemens Ag Elektromagnetisches Hochvakuumventil
DE976704C (de) * 1941-05-10 1964-03-05 Binder Magnete Kommanditgesell Zug-Schub-Elektromagnet
DE1926042U (de) * 1965-03-19 1965-10-28 Kromschroeder Ag G Magnetventil.
DE1806094B1 (de) * 1968-10-30 1970-01-02 Automatic Switch Co Elektromagnetisches Ventil
US3635438A (en) * 1969-10-02 1972-01-18 Gen Motors Corp Power-operated control valve
DE2261449B2 (de) * 1972-12-15 1975-04-24 Bayer Ag, 5090 Leverkusen Vorrichtung zur pyrolytischen Analyse von Flüssigkeiten
US3951378A (en) * 1973-03-09 1976-04-20 Oramt Turbines Ltd. Valve
EP0340625A1 (fr) * 1988-04-30 1989-11-08 Franz Fuchs Electrovanne
DE9107436U1 (de) * 1991-06-17 1991-08-22 Binder Magnete GmbH, 7730 Villingen-Schwenningen Elektromagnetventil mit Druckmittel beöltem Magnetsystem
DE9317864U1 (de) * 1993-11-23 1994-02-10 KENDRION Binder Magnete GmbH, 78048 Villingen-Schwenningen Magnetventil

Family Cites Families (5)

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DE1247792B (de) * 1963-05-09 1967-08-17 Erich Herion Mehrwegemagnetventil mit gegen Federdruck verschiebbaren elastischen Verschlussstuecken
DE2013051A1 (de) * 1970-03-19 1971-10-07 Magnetschultz Spezialfabrik F Elektromagnet für Regelzwecke
US3814376A (en) * 1972-08-09 1974-06-04 Parker Hannifin Corp Solenoid operated valve with magnetic latch
DE2809701A1 (de) * 1978-03-07 1979-09-13 Kromschroeder Ag G Elektromagnetisch betaetigtes gasventil
US5178359A (en) * 1990-02-08 1993-01-12 Applied Power Inc. Porportional pressure control valve

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH37507A (de) * 1906-09-21 1907-06-15 E C H Syndicate Limited Elektromagnetisches Ventil
DE976704C (de) * 1941-05-10 1964-03-05 Binder Magnete Kommanditgesell Zug-Schub-Elektromagnet
DE1004876B (de) * 1953-05-19 1957-03-21 Baelz & Sohn K G W Elektromagnetisch gesteuerte Absperreinrichtung
CH352209A (de) * 1956-09-29 1961-02-15 Siemens Ag Elektromagnetisches Hochvakuumventil
DE1926042U (de) * 1965-03-19 1965-10-28 Kromschroeder Ag G Magnetventil.
DE1806094B1 (de) * 1968-10-30 1970-01-02 Automatic Switch Co Elektromagnetisches Ventil
US3635438A (en) * 1969-10-02 1972-01-18 Gen Motors Corp Power-operated control valve
DE2261449B2 (de) * 1972-12-15 1975-04-24 Bayer Ag, 5090 Leverkusen Vorrichtung zur pyrolytischen Analyse von Flüssigkeiten
US3951378A (en) * 1973-03-09 1976-04-20 Oramt Turbines Ltd. Valve
EP0340625A1 (fr) * 1988-04-30 1989-11-08 Franz Fuchs Electrovanne
DE9107436U1 (de) * 1991-06-17 1991-08-22 Binder Magnete GmbH, 7730 Villingen-Schwenningen Elektromagnetventil mit Druckmittel beöltem Magnetsystem
DE9317864U1 (de) * 1993-11-23 1994-02-10 KENDRION Binder Magnete GmbH, 78048 Villingen-Schwenningen Magnetventil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 165 (M - 230)<1310> 20 July 1983 (1983-07-20) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810398A2 (fr) * 1996-05-30 1997-12-03 Nass Magnet GmbH Robinets-vannes électriques
EP0810398A3 (fr) * 1996-05-30 1998-07-08 Nass Magnet GmbH Robinets-vannes électriques
FR2797022A1 (fr) * 1999-07-30 2001-02-02 Sagem Electrovanne et dispositif de commande en comportant application

Also Published As

Publication number Publication date
ATE217399T1 (de) 2002-05-15
DE59510197D1 (de) 2002-06-13
DE4439695A1 (de) 1996-05-15
DE4439695C2 (de) 2000-05-31
EP0710790B1 (fr) 2002-05-08

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